AK8146C

AK8146C
AK8146C
Two Outputs Clock Generator
Features
Description
Pin Selectable External Input
- 42.72527473MHz
- 43.31250000MHz
- 27.00MHz
- 60.00MHz
Clock out Frequencies:
- 12.000MHz
- 13.5MHz
Low Jitter Performance
- Period Jitter
125 psec (max) at CLK1
205 psec (max) at CLK2
The AK8146C is a low power multi clock generator
which generates different frequency clocks from a
external clock input. It provides two outputs of
12MHz and 13.5MHz. PLL in AK8146C are derived
from AKEMD’s long-term-experienced clock device
technology, and enable clock output to perform low
jitter and to operate with very low current
consumption. The AK8146C is available in a
8-pin USON package.
Applications
Digital Video Camera
Low Current Consumption:
5.0mA (Typ.) at 3.0V
Supply Voltage:
2.7 – 3.6V
Operating Temperature Range:
-20 to +85℃
Package:
8-pin USON (Lead free) 2.2mm x 2.2mm
Block Diagram
VDD
PLL1
CLKIN
SEL0
1/16
CLK1
1/18
CLK2
SEL1
GND
AK8146C
Multi Clock Generator
MS1135-E-00
Nov-2009
-1-
The brand name
of AKEMD’s IC’s
AK8146C
Pin Descriptions
SEL0
1
8
CLKIN
VSS
2
7
VDD
VDD
3
6
SEL1
CLK1
4
5
CLK2
Package: 8-Pin USON(Top View)
Pin
No.
Pin
Name
Pin
Type
1
SEL0
IN
2
GND
PWR
Ground
3
VDD
PWR
Power
4
CLK1
OUT
12.0 MHz clock output
5
CLK2
OUT
13.5 MHz clock output
6
SEL1
IN
7
VDD
PWR
8
CLKIN
IN
SEL1
SEL0
Description
SEL0 and SEL1 pins select the external clock frequency from among
42.72527473MHz, 43.31250000MHz, 27.00MHz and 60.00MHz. Please
refer to the table of External clock frequency selection” shown below.
External clock frequency selection pin. Same as SEL0.
Power
External clock input pin.
It accepts one of the four frequencies selected by SEL0 and SEL1.
Input Frequency
0
0
42.72527473MHz (=405x1760x60/1.001)
0
1
43.31250000 MHz (=462x1875x50)
1
0
27.00 MHz
1
1
60.00 MHz
Ordering Information
Part Number
Marking
Shipping
Packaging
Package
Temperature
Range
AK8146C
146C
Tape and Reel
8-pin USON
-20 to 85 ℃
Nov-2009
MS1135-E-00
-2-
The brand name
of AKEMD’s IC’s
AK8146C
Absolute Maximum Rating
Over operating free-air temperature range unless otherwise noted (1)
Items
Supply voltage
Input voltage
Symbol
Ratings
Unit
VDD
-0.3 to 4.6
V
Vin
VSS-0.3 to VDD+0.3
V
IIN
±10
mA
Tstg
-55 to 130
°C
Input current (any pins except supplies)
Storage temperature
Note
(1) Stress beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only. Functional operation of the device at these or any other conditions beyond those
indicated under “Recommended Operating Conditions” is not implied. Exposure to absolute-maximum-rating
conditions for extended periods may affect device reliability. Electrical parameters are guaranteed only over the
recommended operating temperature range.
ESD Sensitive Device
This device is manufactured on a CMOS process, therefore, generically susceptible to
damage by excessive static voltage. Failure to observe proper handling and
installation procedures can cause damage. AKEMD recommends that this device is handled with
appropriate precautions.
Recommended Operation Conditions
Parameter
Operating temperature
Symbol
Conditions
Min
Ta
-20
Supply voltage (1)
VDD
2.7
Output Load Capacitance
Cp1
Pin: CLK1,CLK2
Typ
Max
Unit
85
°C
3.0
3.6
V
15
pF
Note:
(1) Power to VDD requires to be supplied from a single source.
line should be installed close to each VDD pin.
MS1135-E-00
A decoupling capacitor of 0.1mF for power supply
Nov-2009
-3-
The brand name
of AKEMD’s IC’s
AK8146C
DC Characteristics
All specifications at VDD: over 2.7 to 3.6V, Ta: -20 to +85℃, unless otherwise noted
Parameter
Symbol
Conditions
High Level Input Voltage
VIH
Pin: SEL0 SEL1
Low Level Input Voltage
VIL
Pin: SEL0 SEL1
Input Leakage Current
IL
Pin: SEL0 SEL1
High Level Output Voltage 1
VOH
Low level Output Voltage 1
VOL
High Level Output Voltage 2
VOH
Low level Output Voltage 2
VOL
Current Consumption
IDD
Pin: CLK1, CLK2
IOH=-4.0mA
MIN
TYP
0.7*VDD
0.3*VDD
V
+10
µA
-10
0.8VDD
V
0.2VDD
IOL=+4.0mA
IOH=-1.5mA
0.9VDD
IOL=+0.1mA
0.05VDD
V
6.4
mA
5.0
TYP case is VDD=3.0V,
Ta=25℃
V
V
Pin: CLK1, CLK2
No load,
CLKIN=42.72527473MHz
Unit
V
Pin: CLK1, CLK2
Pin: CLK1, CLK2
MAX
AC Characteristics
All specifications at VDD: over 2.7 to 3.6V, Ta: over -20 to +85℃, unless otherwise noted
Parameter
Symbol
Conditions
External Clock Input
Pin: CLKIN
External Clock Input
Pin: CLKIN
Pin: CLKIN,
Specified at 0.5*Clock
Amplitude
Pin: CLK1
External Clock Duty
Output Clock Frequency
Period Jitter
Output Clock Duty
(1)
Cycle
trise
Output Clock Fall Time(1)
tfall
(3)
Power-up Time
MAX
Unit
MHz
0.7
Vpp
30
70
%
12
MHz
13.5
MHz
Pin: CLK1
125
ps
Pin: CLK2
205
ps
55
%
4.0
ns
4.0
ns
2.8
ms
Pin: CLK1
Output Clock Rise Time
TYP
42.72527473
43.31250000
27.00
60.00
Pin: CLK2
(1) (2)
(1)
MIN
45
50
Pin: CLK1 ,CLK2
Cp1=15pF
Pin: CLK1 ,CLK2
Cp1=15pF
Pin: CLK1,CLK2 Cp1=15pF
1.4
(1) Design Value
(2) 5sigma in 10000 sampling
(3) The time that output reaches the target frequency within accuracy of ±100ppm from the point that the power
supply reaches VDD
Nov-2009
MS1135-E-00
-4-
The brand name
of AKEMD’s IC’s
AK8146C
Package Information
· Mechanical data
2.20±0.05
S
1
0.05
S
1.90±0.05
0.50
0.05
M
0.20±0.05
· Marking
8
a: #1 Pin Index
:
b: Part number
:
c: Date code (3 digits) :
Circle
146C
YMA
5
146C
YMA
1
MS1135-E-00
4
Nov-2009
-5-
The brand name
of AKEMD’s IC’s
AK8146C
IMPORTANT NOTICE
 These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of Asahi
Kasei EMD Corporation (AKEMD) or authorized distributors as to current status of the products.
 AKEMD assumes no liability for infringement of any patent, intellectual property, or other rights in the
application or use of any information contained herein.
 Any export of these products, or devices or systems containing them, may require an export license or
other official approval under the law and regulations of the country of export pertaining to customs and
tariffs, currency exchange, or strategic materials.
 AKEMD products are neither intended nor authorized for use as critical componentsNote1) in any safety, life
support, or other hazard related device or systemNote2), and AKEMD assumes no responsibility for such use,
except for the use approved with the express written consent by Representative Director of AKEMD. As
used here:
Note1) A critical component is one whose failure to function or perform may reasonably be expected to result,
whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and
which must therefore meet very high standards of performance and reliability.
Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety or for
applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may
reasonably be expected to result in loss of life or in significant injury or damage to person or property.
 It is the responsibility of the buyer or distributor of AKEMD products, who distributes, disposes of, or
otherwise places the product with a third party, to notify such third party in advance of the above content
and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and
hold AKEMD harmless from any and all claims arising from the use of said product in the absence of such
notification.
Nov-2009
MS1135-E-00
-6-
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